Studies on the acid activation of Brazilian smectitic clays

By F. Diáz, P. S. Santos. 2001

180 citations recorded by the source corpus.

Fuller's earth and acid activated smectitic clays are largely used as bleaching earth for the industrial processing of vegetable, animal and mineral oils and waxes. The paper comments about the nomenclature used for these materials, the nature of the acid activation of smectitic clays (bentonites), activation laboratory procedures and presents a review of the acid activation of bentonites from 20 deposits from several regions of Brazil. The activated clays were tested and show good decolorizing power for soybean, castor, cottonseed, corn and sunflower oils.

Subfields: Biomaterials

View Paper: https://www.semanticscholar.org/paper/854c1838cabdf01707462d316b5e8480cfeec9ee